I research the wind turbine and use Fluent to simulate problems. I want to know the moment of wind turbine and Fluent can report Cm. Therefore I don't know the meanings of Cm definitely. I had found all the PDF files of Fluent, but I can't find the meanings of Cm (moment coefficient)? I not only want to know the physical meanings of Cm but also its mathematics' equation. Thank you so much!

it's good i find someone working on the same area, the moment which fluent refers is the torque coeffcient of the rotor,

Thank you for your response. And I want to know where you find this relationship. What the relationship between Cm and torgue? Sincerely.

if u've any idea about ur generator torque and blade inertia, then u can find the rpm of the ur rotor at desired TSR, so giving same inputs to fluent, the aerodynamic moment of ur rotor/blade u get is equal to ur torque.

Thank you so much. And I will try the method you said.

Cm is the convergence history of your moment